BML Executive and Leadership Team

May, 2026

Leadership Overview

BML has 6 executives leading key functions including strategy, operations, and information technology.

Driven by a commitment to advancing healthcare, BML provides comprehensive clinical lab testing across Japan, leveraging an extensive network of laboratories to deliver prompt and high-quality diagnostic services to healthcare providers and patients.

Leadership Roles at BML

  • Chief Executive Officer - Darrell Coleman
  • Managing Director & Chief Executive Officer - Allan Ochaka
  • Chief Operating Officer & Executive Director - Michelle Oh
  • Representative Director, President - Kensuke Kondo
  • President - Refik Kosovrasti
  • Chief Information Officer - Richardt Schoonwinkel
  • Darrell Coleman - Chief Executive Officer

    Darrell Coleman, the Chief Executive Officer at BML, directs the overarching corporate strategy and business development initiatives. Coleman's leadership focuses on expanding BML's market presence and enhancing service offerings within Japan's dynamic healthcare landscape. This executive guides the company's long-term vision, ensuring alignment with industry advancements and regulatory requirements. Coleman oversees the integration of new technologies and service lines to maintain BML's position as a leading provider of clinical testing. The Chief Executive Officer's role involves fostering key relationships with healthcare institutions and stakeholders, driving growth through strategic partnerships and operational excellence. Darrell Coleman ensures the company's continued success in delivering essential diagnostic services.

    Allan Ochaka - Managing Director & Chief Executive Officer

    Allan Ochaka, the Managing Director & Chief Executive Officer at BML, spearheads the strategic direction and operational management of the company's extensive laboratory network. Ochaka's responsibilities encompass driving innovation in diagnostic services and ensuring the highest standards of quality across all 53 laboratories in Japan. This executive focuses on optimizing laboratory efficiency and expanding the breadth of BML's over 4,000 diagnostic tests. Allan Ochaka plays a pivotal role in navigating the complexities of the healthcare sector, fostering growth, and maintaining BML's reputation for prompt and accurate clinical testing. The Managing Director & Chief Executive Officer's leadership ensures seamless execution of BML's mission to support healthcare providers and patients nationwide. Allan Ochaka's strategic oversight is critical to the company's sustained impact.
    Allan Ochaka

    Michelle Oh - Chief Operating Officer & Executive Director

    Michelle Oh, the Chief Operating Officer & Executive Director at BML, oversees the day-to-day operations of the company's extensive laboratory network throughout Japan. Oh's leadership focuses on optimizing efficiency, ensuring quality control, and enhancing the delivery of prompt and appropriate clinical testing services to healthcare providers and patients. This executive manages the operational aspects of BML's 53 laboratories, driving process improvements and resource allocation to meet the demands of a broad menu of over 4,000 diagnostic tests. Michelle Oh plays a critical role in maintaining the high standards of service that BML is known for, ensuring seamless coordination between central and regional facilities. The Chief Operating Officer & Executive Director's responsibilities include managing staff, implementing operational policies, and driving initiatives that support BML's mission. Michelle Oh's operational acumen is essential for BML's success.

    Kensuke Kondo - Representative Director, President

    Kensuke Kondo, the Representative Director, President at BML, leads the company's executive management and strategic planning. Kondo's focus is on driving operational excellence and ensuring BML's continued leadership in Japan's clinical testing market. This executive oversees the implementation of corporate policies and the development of long-term growth strategies, aligning BML's extensive laboratory network with evolving healthcare needs. Kensuke Kondo is instrumental in fostering a culture of innovation and quality across the organization, ensuring that BML consistently delivers prompt and appropriate diagnostic services. The Representative Director, President's role involves close collaboration with other senior leaders to enhance service delivery and expand market reach. Kensuke Kondo's leadership ensures BML's commitment to supporting healthcare providers and patients.

    Refik Kosovrasti - President

    Refik Kosovrasti, the President at BML, directs strategic initiatives and operational oversight for the company's extensive clinical laboratory services in Japan. Kosovrasti's leadership focuses on enhancing BML's capacity to provide prompt, appropriate, and high-quality diagnostic testing to healthcare providers and patients. This executive oversees key business functions, ensuring alignment with the company's mission to support public health through advanced laboratory diagnostics. Refik Kosovrasti is instrumental in driving operational excellence across BML's network of 53 laboratories, managing resources effectively to support a broad menu of over 4,000 tests. The President's role involves fostering strong relationships with stakeholders and ensuring that BML remains at the forefront of diagnostic innovation. Refik Kosovrasti's strategic guidance is crucial for BML's continued growth and impact.

    Richardt Schoonwinkel - Chief Information Officer

    Richardt Schoonwinkel, the Chief Information Officer at BML, directs the company's technology strategy and digital transformation initiatives. Schoonwinkel's leadership ensures that BML's information systems effectively support its vast laboratory network and diagnostic services across Japan. This executive oversees the development and implementation of robust IT infrastructure, data security protocols, and innovative technological solutions to enhance operational efficiency and service delivery. Richardt Schoonwinkel plays a crucial role in leveraging data analytics to improve testing accuracy and turnaround times, directly impacting BML's ability to serve healthcare providers and patients. The Chief Information Officer's responsibilities include managing all aspects of information technology, from network management to software development, ensuring seamless integration and optimal performance. Richardt Schoonwinkel's expertise is vital for BML's technological advancement.

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    Frequently Asked Questions Regarding BML Top Executives and Leadership Team

    Who leads BML?
    BML is led by Darrell Coleman (Chief Executive Officer), along with executives such as Allan Ochaka (Managing Director & Chief Executive Officer) and Michelle Oh (Chief Operating Officer & Executive Director).
    Who is part of BML’s executive team?
    The executive team of BML includes leaders such as Darrell Coleman (Chief Executive Officer), Allan Ochaka (Managing Director & Chief Executive Officer), Michelle Oh (Chief Operating Officer & Executive Director) and other senior executives.
    How many executives does BML have?
    BML has 6 executives leading key business areas.
    What roles are included in BML’s leadership team?
    The leadership team of BML includes roles such as Chief Executive Officer, Managing Director & Chief Executive Officer, Chief Operating Officer & Executive Director, Representative Director, President, President.